Vehicle Filling Head Angled Outlet Nozzle Leakage Prevention
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Solution Overview
Problem
Conventional filling heads for liquid tanks in vehicles often experience liquid leakage during refueling, leading to contamination of the vehicle and environment, especially at high filling speeds like 40 l/min, and are not adaptable to various nozzle types and cramped spaces.
Innovation Solution
The filling head features an angled outlet socket and sealing labyrinth for effective fluid sealing, an angled vent connector for efficient air discharge, and a ring magnet for automatic nozzle recognition, ensuring secure and space-optimized installation and preventing liquid backflow and incorrect filling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high filling speed is used, then productivity is improved, but liquid leakage increases
Solution Approach 1:
The filling head applies preliminary anti-action by creating a sealed connection before filling begins. The sealing element forms a tight seal between the filling head and nozzle, and the check valve is pre-positioned to prevent backflow. This preliminary sealing and valve positioning prevents liquid leakage even at high filling speeds of up to 40 l/min.
Solution Approach 2:
The filling head uses an intermediary sealing element that mediates between the filling head housing and the nozzle. This sealing element creates a fluid-tight connection, while the check valve acts as an intermediary mechanism that allows liquid to flow in one direction only, preventing backflow and leakage during high-speed filling operations.
2Adaptability or versatility
If conventional filling head design is used, then device complexity is reduced, but adaptability to different nozzle types decreases
Solution Approach 1:
The filling head achieves universality through its standardized connection interface and sealing mechanism. The housing with outlet socket and sealing element creates a universal connection that can accommodate different nozzle types from various manufacturers. This multi-functional design allows the same filling head to work with diverse nozzles while maintaining sealed connections and preventing pre-filling.
3Ease of operation
If angled outlet configuration is used, then installation flexibility is improved, but manufacturing complexity increases
Solution Approach 1:
The filling head applies dimensionality change by configuring the outlet socket and connecting piece at an angle relative to the main housing axis. This angular arrangement in a different spatial dimension allows flexible installation orientations and routing of fluid connections while maintaining a relatively simple injection-molded housing structure, balancing manufacturing ease with installation flexibility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows for high-speed filling up to 40 l/min without liquid escape, accommodates different nozzles, and prevents pre-filling, ensuring a reliable and space-efficient fluid connection while maintaining a tight seal, thus preventing contamination and ensuring correct filling.
Implementation Method 1
the ring magnet being designed to release an automatic dispensing valve mechanism of the dispensing valve
Implementation Method 2
the sealing projection of the connecting piece into the sealing receptacle of the housing, a particularly advantageous fluid-technical seal can be ensured
Implementation Method 3
liquid conducted through the connecting piece can be diverted particularly effectively through the angled outlet section into the angled outlet nozzle. This can prevent liquid from backing up in the angled outlet connector at high filling speeds.
Implementation Method 4
air displaced from the liquid tank through the ventilation nozzle can be conveyed out of the filling head
Data Source
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AI summary
The present disclosure relates to a filling head (100) for a liquid tank in a vehicle, comprising a housing (103) with a first housing part (103-1) and a second housing part (103-2) connected to each other, wherein a receiving opening (117) is formed in the first housing part (103-1), wherein a dispensing nozzle for filling liquid can be inserted into the receiving opening (117), and wherein an angled outlet nozzle (121) for discharging the supplied liquid into the liquid tank is formed in the second housing part (103-2), and a connecting nozzle (111) for directing the liquid, wherein the connecting nozzle (111) is arranged in the housing (103) between the first housing part (103-1) and the second housing part (103-2), wherein the connecting nozzle (111) has a receptacle (119) for receiving the dispensing nozzle, wherein the connecting nozzle (111) furthermore has an angled outlet section (125),which is at least partially inserted into the angled outlet nozzle (121) of the second housing part (103-2).